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Guanajuato, Mexico

La Ciénega · Air quality

Saturday, Nov 14 · America/Mexico City

La Ciénega air quality

US air quality index

37

Good

US EPA scale

  1. Good0–50Current category
  2. Moderate51–100
  3. Unhealthy for sensitive groups101–150
  4. Unhealthy151–200
  5. Very unhealthy201–300
  6. Hazardous301–500+

A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.

Understand the EPA scale

All pollutants

PM1
10 µg/m³
PM2.5
11.6 µg/m³
PM10
10 µg/m³
Ozone
33.9 µg/m³
Nitrogen dioxide
8 µg/m³
Sulfur dioxide
0.3 µg/m³
Carbon monoxide
146.7 µg/m³
European AQI (separate scale)
1